It's 2 for 1意思

"2 for 1" is a promotional term often used in retail and advertising to indicate that a customer can buy two items for the price of one. This means that the customer pays the price of one item but receives two items in return, effectively offering a discount of 50% on the second item.

This type of promotion is commonly seen in clothing stores, restaurants, and other businesses as a way to encourage customers to buy more and to increase sales. It's a form of BOGO (Buy One, Get One) promotion, which is a popular marketing strategy to attract and retain customers.